:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --surface: #f6f8fa;
  --text: #0b1622;
  --muted: #5a6b7b;
  --accent: #0b6bcb;
  --border: #dde3ea;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1016;
    --surface: #141b23;
    --text: #f2f6fa;
    --muted: #9baaba;
    --accent: #4da3ff;
    --border: #2a3641;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 2rem 1.25rem 4rem;
  background: var(--bg);
  color: var(--text);
  font:
    16px/1.6 -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    Roboto,
    sans-serif;
}

main {
  max-width: 42rem;
  margin: 0 auto;
}

h1 {
  font-size: 2rem;
  line-height: 1.2;
  margin: 0 0 0.5rem;
}

h2 {
  font-size: 1.15rem;
  margin: 2rem 0 0.5rem;
}

.lead {
  font-size: 1.15rem;
  color: var(--muted);
  margin-top: 0;
}

.muted {
  color: var(--muted);
  font-size: 0.9rem;
}

ul {
  padding-left: 1.25rem;
}

li {
  margin: 0.35rem 0;
}

a {
  color: var(--accent);
}

.button {
  display: inline-block;
  padding: 0.75rem 1.25rem;
  background: var(--accent);
  color: #fff;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  /* Meets the 44px minimum tap target on touch devices. */
  min-height: 44px;
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.9rem;
}

.banner {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem;
  margin: 1.5rem 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  display: block;
  overflow-x: auto;
}

th,
td {
  text-align: left;
  padding: 0.5rem;
  border-bottom: 1px solid var(--border);
}